This phone is simply awesome.If you are looking to buy phone under 16k this is perfect phone.
I have also used J7 old edition
comparing the new with the older one ith has monor changes but powerful changes i.e.
Battery, Processor, Ram, Marshmallow(OS), Mettalic design expect these changes all other things are the same.
Some of the pitfalls sill came from with j7-6 from old ones are:
PROs:
1.display is good with vibrant colours.
2.touch is smooth and responsive.
3.build quality is good
4.camera quality is simply brilliant(both front and rear)
5.battery backup is good
6.no lag or hanging problem
7.phone is slim and light weight
8.front flash
9.OTG support
10.Fast charging
CONs:
1.no backlight on buttons
2.no gorilla glass
3.speaker sound is less